Improved air stability and increase engine performance can be expected with a Pro-Modified Walbro Carburetor from Performance Unlimited and find fuel IV bags too...

All of our Carburetors Are machined for precise air flow and finished by hand for proper flow into the venturi and minimum flow tumbling that gives better velocities at low rpm that increases torque.

These Fuel Bags with stand the rigors of racing and do not get hard like the Secure or Baxter IV bags.

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Modified Walbro WT-644 Carb

$ 55.00 USD

NEWPro-Modified Walbro WT-644 Carb

We Pro-Modified this carb for improved air stability and increase engine performance.

Flows better than a stock WT-257 at an economical lower cost

Re-shaped and polished entry to smooth incoming air flow

Venturi enlarged from 12.7mm to 13.7mm to increase Flow and Velocity

Stainless screws and carb gasket included.

Get Instant throttle response and more power with this bolt-on.

WT-257 Modified Carb for ZENOAH

$ 57.00 USD

Walbro WT-257 Carb

Modified to enable better air flow and fuel distribution

The Intake of the carb has been machined to a bell shape and the venturi opened up from 12.7mm to 13.7mm.

This modification increases RPM and Power over a stock WT-257 carb.

500ml Fuel I V Bag (Pkg of 2)

$ 18.00 USD

Dr Buck's 500ml Fuel Bag (Pkg of 2)

You get 2 Bags per Order

Holds 500ml (16oz) of Fuel

Made of a flexable type of vinyl / plastic that does not get hard like the Baxter IV Bags & does not get soft & leak like the Secure IV Bags. This fuel bag has two lines for fuel or you can use one for a fill & the other one goes to carb. Does not need to be vented & the bag collapses as the fuel is being used. The bag also has two areas that are for mounting on the sides